(19)

(11)

EP 2 029 826 A1

(12)

(43) Date of publication: 04.03.2009 Bulletin 2009/10 (21) Application number: 06795584.9 (22) Date of filing: 06.06.2006

(51) International Patent Classification (IPC):  E04C 1/00(2006.01) (86) International application number: PCT/IB2006/002825 (87) International publication number: WO 2007/135478 (29.11.2007 Gazette 2007/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 23.05.2006 CO 4923406 (71) Applicants: Martinez Naranjo, Jhon Jairo Bogota N/A (CO) Abella, Ricardo Enrique Bogota N/A (CO)	(72) Inventor: ABELLA, Ricardo Enrique Bogota N/A (CO) (74) Representative: Gardiner, Stephen Robin  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square GB-London EC4Y 8JD GB-London EC4Y 8JD (GB)